An optically active imidazolidinone derivative represented by general formula (I)
having a cholinergic activity (a muscarine M1 activity) and being useful for treating senile dementia, a pharmacologically acceptable acid-addition salt thereof, and a process for producing the same, wherein R and R1 may be the same or different and each represents hydrogen, halogen, optionally halogenated lower alkyl, lower alkoxy, lower alkylthio, lower alkoxycarbonyl, nitro, amino or cyano; and n represents 1 to 4.
由通式(I)代表的具有光学活性的
咪唑烷酮衍
生物
其中 R 和 R1 可以相同或不同,各自代表氢、卤素、任选卤化的低级烷基、低级烷氧基、低级烷
硫基、低级烷氧羰基、硝基、
氨基或
氰基;n 代表 1 至 4。